from django.db import models, connection from utils.constants import ALGOS from evidence.models import Annotation, Evidence from lot.models import DeviceLot class Device: class Types(models.TextChoices): DESKTOP = "Desktop" LAPTOP = "Laptop" SERVER = "Server" GRAPHICCARD = "GraphicCard" HARDDRIVE = "HardDrive" SOLIDSTATEDRIVE = "SolidStateDrive" MOTHERBOARD = "Motherboard" NETWORKADAPTER = "NetworkAdapter" PROCESSOR = "Processor" RAMMODULE = "RamModule" SOUNDCARD = "SoundCard" DISPLAY = "Display" BATTERY = "Battery" CAMERA = "Camera" def __init__(self, *args, **kwargs): # the id is the chid of the device self.id = kwargs["id"] self.uuid = kwargs.get("uuid") self.pk = self.id self.shortid = self.pk[:6].upper() self.algorithm = None self.owner = None self.annotations = [] self.hids = [] self.uuids = [] self.evidences = [] self.lots = [] self.last_evidence = None self.get_last_evidence() def initial(self): self.get_annotations() self.get_uuids() self.get_hids() self.get_evidences() self.get_lots() def get_annotations(self): if self.annotations: return self.annotations self.annotations = Annotation.objects.filter( type=Annotation.Type.SYSTEM, value=self.id ).order_by("-created") if self.annotations.count(): self.algorithm = self.annotations[0].key self.owner = self.annotations[0].owner return self.annotations def get_user_annotations(self): if not self.uuids: self.get_uuids() annotations = Annotation.objects.filter( uuid__in=self.uuids, owner=self.owner, type=Annotation.Type.USER ) return annotations def get_user_documents(self): if not self.uuids: self.get_uuids() annotations = Annotation.objects.filter( uuid__in=self.uuids, owner=self.owner, type=Annotation.Type.DOCUMENT ) return annotations def get_uuids(self): for a in self.get_annotations(): if a.uuid not in self.uuids: self.uuids.append(a.uuid) def get_hids(self): annotations = self.get_annotations() algos = list(ALGOS.keys()) algos.append('CUSTOM_ID') self.hids = list(set(annotations.filter( type=Annotation.Type.SYSTEM, key__in=algos, ).values_list("value", flat=True))) def get_evidences(self): if not self.uuids: self.get_uuids() self.evidences = [Evidence(u) for u in self.uuids] def get_last_evidence(self): if self.last_evidence: return if self.uuid: self.last_evidence = Evidence(self.uuid) return annotations = self.get_annotations() if not annotations.count(): return annotation = annotations.first() self.last_evidence = Evidence(annotation.uuid) self.uuid = annotation.uuid def is_eraseserver(self): if not self.uuids: self.get_uuids() if not self.uuids: return False annotation = Annotation.objects.filter( uuid__in=self.uuids, owner=self.owner, type=Annotation.Type.ERASE_SERVER ).first() if annotation: return True return False def last_uuid(self): if self.uuid: return self.uuid return self.uuids[0] def get_lots(self): self.lots = [ x.lot for x in DeviceLot.objects.filter(device_id=self.id)] @classmethod def get_unassigned(cls, institution, offset=0, limit=None): sql = """ WITH RankedAnnotations AS ( SELECT t1.value, t1.key, ROW_NUMBER() OVER ( PARTITION BY t1.uuid ORDER BY CASE WHEN t1.key = 'CUSTOM_ID' THEN 1 WHEN t1.key = 'hidalgo1' THEN 2 ELSE 3 END, t1.created DESC ) AS row_num FROM evidence_annotation AS t1 LEFT JOIN lot_devicelot AS t2 ON t1.value = t2.device_id WHERE t2.device_id IS NULL AND t1.owner_id = {institution} AND t1.type = {type} ) SELECT DISTINCT value FROM RankedAnnotations WHERE row_num = 1 """.format( institution=institution.id, type=Annotation.Type.SYSTEM, ) if limit: sql += " limit {} offset {}".format(int(limit), int(offset)) sql += ";" annotations = [] with connection.cursor() as cursor: cursor.execute(sql) annotations = cursor.fetchall() devices = [cls(id=x[0]) for x in annotations] count = cls.get_unassigned_count(institution) return devices, count @classmethod def get_unassigned_count(cls, institution): sql = """ WITH RankedAnnotations AS ( SELECT t1.value, t1.key, ROW_NUMBER() OVER ( PARTITION BY t1.uuid ORDER BY CASE WHEN t1.key = 'CUSTOM_ID' THEN 1 WHEN t1.key = 'hidalgo1' THEN 2 ELSE 3 END, t1.created DESC ) AS row_num FROM evidence_annotation AS t1 LEFT JOIN lot_devicelot AS t2 ON t1.value = t2.device_id WHERE t2.device_id IS NULL AND t1.owner_id = {institution} AND t1.type = {type} ) SELECT COUNT(DISTINCT value) FROM RankedAnnotations WHERE row_num = 1 """.format( institution=institution.id, type=Annotation.Type.SYSTEM, ) with connection.cursor() as cursor: cursor.execute(sql) return cursor.fetchall()[0][0] @classmethod def get_annotation_from_uuid(cls, uuid, institution): sql = """ WITH RankedAnnotations AS ( SELECT t1.value, t1.key, ROW_NUMBER() OVER ( PARTITION BY t1.uuid ORDER BY CASE WHEN t1.key = 'CUSTOM_ID' THEN 1 WHEN t1.key = 'hidalgo1' THEN 2 ELSE 3 END, t1.created DESC ) AS row_num FROM evidence_annotation AS t1 LEFT JOIN lot_devicelot AS t2 ON t1.value = t2.device_id WHERE t2.device_id IS NULL AND t1.owner_id = {institution} AND t1.type = {type} AND t1.uuid = '{uuid}' ) SELECT DISTINCT value FROM RankedAnnotations WHERE row_num = 1; """.format( uuid=uuid.replace("-", ""), institution=institution.id, type=Annotation.Type.SYSTEM, ) annotations = [] with connection.cursor() as cursor: cursor.execute(sql) annotations = cursor.fetchall() return cls(id=annotations[0][0]) @property def is_websnapshot(self): self.get_last_evidence() return self.last_evidence.doc['type'] == "WebSnapshot" @property def last_user_evidence(self): self.get_last_evidence() return self.last_evidence.doc['kv'].items() @property def manufacturer(self): self.get_last_evidence() return self.last_evidence.get_manufacturer() @property def serial_number(self): self.get_last_evidence() return self.last_evidence.get_serial_number() @property def type(self): self.get_last_evidence() if self.last_evidence.doc['type'] == "WebSnapshot": return self.last_evidence.doc.get("device", {}).get("type", "") return self.last_evidence.get_chassis() @property def model(self): self.get_last_evidence() return self.last_evidence.get_model() @property def components(self): self.get_last_evidence() return self.last_evidence.get_components()